The answer
Use a single state object: { cart: {}, searchQuery: '', filters: { veg: null, category: 'all', maxPrice: Infinity } }. All views read from this state. All actions update this state and trigger a re-render. This makes the app predictable.
Food Ordering App: Architecture and State Management
How do you manage state in a food ordering app in JavaScript?
More FAQs in Food Ordering App: Architecture and State Management
Separate into three layers: data (menu array), state (cart, filters, search query in one object), and view (render functions for menu and cart). Update flow: user action -> update state -> re-render. Single source of truth.
State-based rendering. Update the state object, then re-render from the state. This keeps the UI in sync with the state and makes the app predictable. Direct DOM manipulation leads to bugs when the UI and state get out of sync.
User action (click, type) -> update state (cart, filters, search) -> re-render affected view (menu, cart). This one-way flow makes the app predictable and debuggable. Avoid direct DOM manipulation without updating state.
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